I have Sakai 2.8.1 source code and creating full crude application (JSF) and it deployed successfully on a Tomcat 5.1 server, however at run time it shows this error.
org.sakaiproject.portal.api.PortalHandlerException: org.sakaiproject.tool.api.ToolException: Could not get property value of component items:_idJsp6
at org.sakaiproject.portal.charon.SkinnableCharonPortal.doGet(SkinnableCharonPortal.java:862)
caused by: org.sakaiproject.tool.api.ToolException: Could not get property value of component items:_idJsp6
at org.sakaiproject.portal.charon.SkinnableCharonPortal.forwardTool(SkinnableCharonPortal.java:1429)
caused by: javax.servlet.ServletException: Could not get property value of component items:_idJsp6
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
caused by: javax.faces.FacesException: Could not get property value of component items:_idJsp6
at org.apache.myfaces.application.jsp.JspViewHandlerImpl.renderView(JspViewHandlerImpl.java:211)
caused by: org.apache.jasper.JasperException: Could not get property value of component items:_idJsp6
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:413)
caused by: javax.faces.FacesException: Could not get property value of component items:_idJsp6
at javax.faces.component._ComponentAttributesMap.get(_ComponentAttributesMap.java:235)
caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
caused by: java.lang.NoClassDefFoundError: org/sakaiproject/submativeassessment/logic/ExternalLogic
at java.lang.Class.privateGetDeclaredMethods(Class.java:2427)
caused by: java.lang.ClassNotFoundException: org.sakaiproject.submativeassessment.logic.ExternalLogic
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1438)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1284)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
at java.lang.Class.getDeclaredMethods0(Native Method)
at java.lang.Class.privateGetDeclaredMethods(Class.java:2427)
at java.lang.Class.getDeclaredMethods(Class.java:1791)
at java.beans.Introspector$1.run(Introspector.java:1272)
at java.security.AccessController.doPrivileged(Native Method)
at java.beans.Introspector.getPublicDeclaredMethods(Introspector.java:1270)
at java.beans.Introspector.getTargetMethodInfo(Introspector.java:1136)
at java.beans.Introspector.getBeanInfo(Introspector.java:387)
at java.beans.Introspector.getBeanInfo(Introspector.java:159)
at org.apache.myfaces.el.PropertyResolverImpl.getPropertyDescriptor(PropertyResolverImpl.java:472)
at org.apache.myfaces.el.PropertyResolverImpl.getType(PropertyResolverImpl.java:325)
at org.apache.myfaces.config.ManagedBeanBuilder.initializeProperties(ManagedBeanBuilder.java:177)
at org.apache.myfaces.config.ManagedBeanBuilder.buildManagedBean(ManagedBeanBuilder.java:55)
at org.apache.myfaces.el.VariableResolverImpl.resolveVariable(VariableResolverImpl.java:314)
at org.sakaiproject.jsf.app.SakaiVariableResolver.resolveVariable(SakaiVariableResolver.java:76)
at org.apache.myfaces.el.ValueBindingImpl$ELVariableResolver.resolveVariable(ValueBindingImpl.java:570)
at org.apache.commons.el.NamedValue.evaluate(NamedValue.java:124)
at org.apache.commons.el.ComplexValue.evaluate(ComplexValue.java:140)
at org.apache.commons.el.ExpressionString.evaluate(ExpressionString.java:114)
at org.apache.myfaces.el.ValueBindingImpl.getValue(ValueBindingImpl.java:386)
at javax.faces.component.UIOutput.getValue(UIOutput.java:80)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at javax.faces.component._ComponentAttributesMap.getComponentProperty(_ComponentAttributesMap.java:387)
at javax.faces.component._ComponentAttributesMap.get(_ComponentAttributesMap.java:235)
at org.sakaiproject.jsf.util.RendererUtil.getAttribute(RendererUtil.java:88)
at org.sakaiproject.jsf.renderer.InstructionMessageRenderer.encodeEnd(InstructionMessageRenderer.java:59)
at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:539)
at javax.faces.webapp.UIComponentTag.encodeEnd(UIComponentTag.java:498)
at javax.faces.webapp.UIComponentTag.doEndTag(UIComponentTag.java:366)
at org.apache.jsp.submativeassessment.SubmativeassessmentItems_jsp._jspx_meth_sakai_005finstruction_005fmessage_005f0(SubmativeassessmentItems_jsp.java:419)
at org.apache.jsp.submativeassessment.SubmativeassessmentItems_jsp._jspx_meth_h_005fform_005f1(SubmativeassessmentItems_jsp.java:350)
at org.apache.jsp.submativeassessment.SubmativeassessmentItems_jsp._jspx_meth_sakai_005fview_005fcontent_005f0(SubmativeassessmentItems_jsp.java:314)
at org.apache.jsp.submativeassessment.SubmativeassessmentItems_jsp._jspx_meth_sakai_005fview_005fcontainer_005f0(SubmativeassessmentItems_jsp.java:217)
at org.apache.jsp.submativeassessment.SubmativeassessmentItems_jsp._jspx_meth_f_005fview_005f0(SubmativeassessmentItems_jsp.java:176)
at org.apache.jsp.submativeassessment.SubmativeassessmentItems_jsp._jspService(SubmativeassessmentItems_jsp.java:123)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:98)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:371)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:308)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:259)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:659)
at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:457)
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:395)
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:311)
at org.apache.myfaces.context.servlet.ServletExternalContextImpl.dispatch(ServletExternalContextImpl.java:419)
at org.apache.myfaces.application.jsp.JspViewHandlerImpl.renderView(JspViewHandlerImpl.java:211)
at org.sakaiproject.jsf.app.SakaiViewHandler.renderView(SakaiViewHandler.java:137)
at org.apache.myfaces.lifecycle.RenderResponseExecutor.execute(RenderResponseExecutor.java:41)
at org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:132)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:140)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
at org.sakaiproject.util.RequestFilter.doFilter(RequestFilter.java:598)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:659)
at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:457)
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:395)
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:311)
at org.sakaiproject.jsf.util.JsfTool.dispatch(JsfTool.java:221)
at org.sakaiproject.jsf.util.JsfTool.doGet(JsfTool.java:241)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:627)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:659)
at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:457)
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:359)
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:311)
at org.sakaiproject.tool.impl.ActiveToolComponent$MyActiveTool.forward(ActiveToolComponent.java:511)
at org.sakaiproject.portal.charon.SkinnableCharonPortal.forwardTool(SkinnableCharonPortal.java:1429)
at org.sakaiproject.portal.charon.handlers.ToolHandler.doTool(ToolHandler.java:204)
at org.sakaiproject.portal.charon.handlers.ToolHandler.doGet(ToolHandler.java:96)
at org.sakaiproject.portal.charon.SkinnableCharonPortal.doGet(SkinnableCharonPortal.java:862)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:627)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
at org.sakaiproject.util.RequestFilter.doFilter(RequestFilter.java:659)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:172)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174)
at org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:843)
at org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:679)
at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1303)
at java.lang.Thread.run(Thread.java:619)
